/* * Copyright (C) 2003 PMC-Sierra Inc. * Author: Manish Lachwani (lachwani@pmc-sierra.com) * * Copyright (C) 2004 by Ralf Baechle (ralf@linux-mips.org) * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your * option) any later version. * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 675 Mass Ave, Cambridge, MA 02139, USA. */ #include <linux/bcd.h> #include <linux/init.h> #include <linux/kernel.h> #include <linux/types.h> #include <linux/mm.h> #include <linux/bootmem.h> #include <linux/swap.h> #include <linux/ioport.h> #include <linux/sched.h> #include <linux/interrupt.h> #include <linux/timex.h> #include <linux/termios.h> #include <linux/tty.h> #include <linux/serial.h> #include <linux/serial_core.h> #include <linux/serial_8250.h> #include <asm/time.h> #include <asm/bootinfo.h> #include <asm/page.h> #include <asm/io.h> #include <asm/irq.h> #include <asm/processor.h> #include <asm/reboot.h> #include <asm/serial.h> #include <asm/titan_dep.h> #include <asm/m48t37.h> #include "setup.h" unsigned char titan_ge_mac_addr_base[6] = { // 0x00, 0x03, 0xcc, 0x1d, 0x22, 0x00 0x00, 0xe0, 0x04, 0x00, 0x00, 0x21 }; unsigned long cpu_clock_freq; unsigned long yosemite_base; static struct m48t37_rtc *m48t37_base; void __init bus_error_init(void) { /* Do nothing */ } void read_persistent_clock(struct timespec *ts) { unsigned int year, month, day, hour, min, sec; unsigned long flags; spin_lock_irqsave(&rtc_lock, flags); /* Stop the update to the time */ m48t37_base->control = 0x40; year = bcd2bin(m48t37_base->year); year += bcd2bin(m48t37_base->century) * 100; month = bcd2bin(m48t37_base->month); day = bcd2bin(m48t37_base->date); hour = bcd2bin(m48t37_base->hour); min = bcd2bin(m48t37_base->min); sec = bcd2bin(m48t37_base->sec); /* Start the update to the time again */ m48t37_base->control = 0x00; spin_unlock_irqrestore(&rtc_lock, flags); ts->tv_sec = mktime(year, month, day, hour, min, sec); ts->tv_nsec = 0; } int rtc_mips_set_time(unsigned long tim) { struct rtc_time tm; unsigned long flags; /* * Convert to a more useful format -- note months count from 0 * and years from 1900 */ rtc_time_to_tm(tim, &tm); tm.tm_year += 1900; tm.tm_mon += 1; spin_lock_irqsave(&rtc_lock, flags); /* enable writing */ m48t37_base->control = 0x80; /* year */ m48t37_base->year = bin2bcd(tm.tm_year % 100); m48t37_base->century = bin2bcd(tm.tm_year / 100); /* month */ m48t37_base->month = bin2bcd(tm.tm_mon); /* day */ m48t37_base->date = bin2bcd(tm.tm_mday); /* hour/min/sec */ m48t37_base->hour = bin2bcd(tm.tm_hour); m48t37_base->min = bin2bcd(tm.tm_min); m48t37_base->sec = bin2bcd(tm.tm_sec); /* day of week -- not really used, but let's keep it up-to-date */ m48t37_base->day = bin2bcd(tm.tm_wday + 1); /* disable writing */ m48t37_base->control = 0x00; spin_unlock_irqrestore(&rtc_lock, flags); return 0; } void __init plat_time_init(void) { mips_hpt_frequency = cpu_clock_freq / 2; mips_hpt_frequency = 33000000 * 3 * 5; } unsigned long ocd_base; EXPORT_SYMBOL(ocd_base); /* * Common setup before any secondaries are started */ #define TITAN_UART_CLK 3686400 #define TITAN_SERIAL_BASE_BAUD (TITAN_UART_CLK / 16) #define TITAN_SERIAL_IRQ 4 #define TITAN_SERIAL_BASE 0xfd000008UL static void __init py_map_ocd(void) { ocd_base = (unsigned long) ioremap(OCD_BASE, OCD_SIZE); if (!ocd_base) panic("Mapping OCD failed - game over. Your score is 0."); /* Kludge for PMON bug ... */ OCD_WRITE(0x0710, 0x0ffff029); } static void __init py_uart_setup(void) { #ifdef CONFIG_SERIAL_8250 struct uart_port up; /* * Register to interrupt zero because we share the interrupt with * the serial driver which we don't properly support yet. */ memset(&up, 0, sizeof(up)); up.membase = (unsigned char *) ioremap(TITAN_SERIAL_BASE, 8); up.irq = TITAN_SERIAL_IRQ; up.uartclk = TITAN_UART_CLK; up.regshift = 0; up.iotype = UPIO_MEM; up.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST; up.line = 0; if (early_serial_setup(&up)) printk(KERN_ERR "Early serial init of port 0 failed\n"); #endif /* CONFIG_SERIAL_8250 */ } static void __init py_rtc_setup(void) { m48t37_base = ioremap(YOSEMITE_RTC_BASE, YOSEMITE_RTC_SIZE); if (!m48t37_base) printk(KERN_ERR "Mapping the RTC failed\n"); } /* Not only time init but that's what the hook it's called through is named */ static void __init py_late_time_init(void) { py_map_ocd(); py_uart_setup(); py_rtc_setup(); } void __init plat_mem_setup(void) { late_time_init = py_late_time_init; /* Add memory regions */ add_memory_region(0x00000000, 0x10000000, BOOT_MEM_RAM); #if 0 /* XXX Crash ... */ OCD_WRITE(RM9000x2_OCD_HTSC, OCD_READ(RM9000x2_OCD_HTSC) | HYPERTRANSPORT_ENABLE); /* Set the BAR. Shifted mode */ OCD_WRITE(RM9000x2_OCD_HTBAR0, HYPERTRANSPORT_BAR0_ADDR); OCD_WRITE(RM9000x2_OCD_HTMASK0, HYPERTRANSPORT_SIZE0); #endif }